Rapid Set® cement products, made with calcium sulfoaluminate (CSA) cement technology.Click to see full answer. Just so, what is in rapid set concrete?Rapid Set No-Mix Concrete is a proportioned blend of dry aggregate, graded sands, cement and additive mixture suitable for post hole applications where lower than normal strength is acceptable. The additive used in the mix reacts instantly with cement allowing very little to no mixing time or compaction.One may also ask, is quick set concrete strong? Easy Mix Quick Set High Strength Concrete is up to 60% stronger than the compressive strength of standard 20MPa concrete. It is a blend of Portland cement, gravel, graded coarse sand, fine aggregates and two accelerating compounds. Subsequently, question is, what does rapid hardening cement contain? Rapid Hardening Cement is similar to Ordinary Portland Cement (OPC) but with higher tri-calcium silicate (C3S) content and it is ground more finely . It gain strength more quickly than OPC, though the final strength is only slightly higher.Is Rapid Set Cement All waterproof?Immediately after mixing, CEMENT ALL is applied and stroke-off to desired level. Rapid Set is fast and does not bleed water, thus the final finish can be applied immediately after placement. The surface repaired with CEMENT ALL is water cured.